Adam Leber: Britney dainuoja gyvai tada, kada gali

Britney vadybininkas Adam Leber interviu metu su "Medium" teigia, kad yra sunku atlikti tokį šou, kaip "Piece Of Me" ir visą laiką dainuoti gyvai. 

"To put on the show that she puts on, it’s virtually impossible to sing the entire time and do what she does. She’s singing on every song, basically, when she has the ability to sing. There’s no way you can dance for 90 minutes straight and sing the entire time."